Specifications 5 - Toro Greensmaster TriFlex 3320/3420 Service Manual

Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION
Operator's Manuals . . . . . . . . . . . . . . . . . . . . . . . . .
Check Hydraulic Fluid Level
Pushing Traction Unit . . . . . . . . . . . . . . . . . . . . . . . .
Relieving Hydraulic System Pressure
Opening Electrical Circuit to Cutting Units
Traction Circuit Component Failure
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Hose and Tube Installation (O--Ring
Face Seal Fitting) . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Fitting Installation (SAE Straight Thread
O--Ring Fitting into Component Port)
HYDRAULIC SCHEMATIC
HYDRAULIC FLOW DIAGRAMS
Traction Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lower Cutting Units . . . . . . . . . . . . . . . . . . . . . . . .
Raise Cutting Units . . . . . . . . . . . . . . . . . . . . . . . . .
Right and Left Turn . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .
General Hydraulic System Problems
Traction Circuit Problems
Lift/Lower Circuit Problems
Steering Circuit Problems
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Relief Valve Pressure Test
Piston (Traction) Pump Flow Test
Wheel Motor Efficiency Test
Steering/Lift Relief Valve Pressure Test
Lower Cutting Units Relief Valve (RV)
Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering/Lift Circuit Gear Pump Flow Test
Power Steering Valve Test
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust Manifold Relief Valves
Adjust Traction Control Assembly
Greensmaster 3320/3420
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Hydraulic System
SERVICE AND REPAIRS
General Precautions for Removing and
Installing Hydraulic System Components
Flush Hydraulic System
Filtering Closed--Loop Traction Circuit
Hydraulic System Start--up
Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Pump Service . . . . . . . . . . . . . . . . . . . . . . . .
Piston (Traction) Pump Neutral Assembly
Piston (Traction) Pump
Piston (Traction) Pump Service
Piston Pump Crush Ring Replacement
Front Wheel Motors . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wheel Motor (Optional 3WD)
Wheel Motor Service . . . . . . . . . . . . . . . . . . . . . . .
Lift Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lift Cylinder Service . . . . . . . . . . . . . . . . . . . . . . . .
Lift Control Manifold . . . . . . . . . . . . . . . . . . . . . . . .
Lift Control Manifold Service
Control Manifold Cartridge Valve Service
Power Steering Valve . . . . . . . . . . . . . . . . . . . . . . .
Power Steering Valve Service
Steering Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Cylinder Service
Hydraulic Reservoir . . . . . . . . . . . . . . . . . . . . . . . .
Leak Detector Tank (Machines Equipped with
Optional Turf Guardiant Leak Detector
System) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Detector Solenoid Valve Assembly (Machines
Equipped with Optional Turf Guardiant Leak
Detector System) . . . . . . . . . . . . . . . . . . . . . . . . .
EATON, MEDIUM DUTY PISTON PUMP, REPAIR
INFORMATION, MODEL
DISPLACEMENT PISTON PUMP
PARKER TORQMOTOR
TM
(TC, TB, TE, TJ, TF, TG, TH AND TL SERIES)
SAUER/DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Chapter 5
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70160 VARIABLE
SERVICE PROCEDURE
Hydraulic System